final deprotection step was achieved by catalytic hydrogenolysis. The biological properties of the compounds have been evaluated toward transducin, the G-protein of the visual photoreceptor. Three guanosine imidodiphosphate derivatives bearing a linker at different positions on the sugar and on the base were then prepared and evaluated, giving some insight into the GDP binding site of transducin.
N, N-Dibenzyl Formamide Dimethyl Acetal and N, N-Dibenzyl Chloromethylene Iminium Chloride: Two Complementary Reagents for the Protection Of Primary Amines as N, N-Dibenzyl Formamidines
作者:Stéphane Vincent、Luc Lebeau、Charles Mioskowski
DOI:10.1080/00397919908085753
日期:1999.1
Two complementary procedures are described for the preparation of N,N-dibenzyl formamidines from primary amines in high yield. The primary amine protective group can be easily introduced on polyhydroxylated molecules and is removable either by hydrolysis or hydrogenolysis.